... certificate 4. OEM accepted Description:1. TheAgricultural tyre endowed with a good drive power and hold power.2. The reasonable ... rubber). Specific size as follows:1,The Agricultural tyres with pattern R1 size:20.8-38,18.4-38, ... .00-8 etc .4,The Agricultural Tricycle and Auto tyre/tire with RIB size:6.50-16,6.50-15,6 ... The desert tyre size :900-178,The implement tyre with pattern I-1 size:12.5L-16,12.5L- ...